Classify each phrase as a descriptor of ABC transporters, P-type ATPases, or both. Note that membrane pumps containing ATP-binding cassette domains are referred to as ABC transporters. ABC transporters P-type ATPase transporters Both catalytic cycle begins with substrate bound but ATP not bound (for example, the conformation \( \left.\mathrm{E}_{1}-\left(\mathrm{Ca}^{2}\right)_{2}\right) \)